That s factorial 12 11 10 2 1 different arrangements.
Three marbles with 2 colors can be aranged.
A sample of 4 marbles is taken out of the bag.
Two with only one possible arrangement each and two with nine possible arrangements each.
A this is just 8 people being arranged in a row.
The total arrangements hasn t changed 120 because we have the same number of marbles.
So let s say we have 4 slots here.
3 blue marbles 2 red marbles and one green marble.
Notice that drawing two marbles at the same time is the same as drawing two marbles consecutively without replacing the first marble.
Example 15 in how many ways can 4 red 3 yellow and 2 green discs be arranged in a row if the discs of the same colour are indistinguishable.
How many ways can i arrange 10 red marbles 5 white marbles and 6 blue marbles in a row.
In how many ways can at least 3 marbles be purple.
The same 4 colors we ve picked them in different orders.
We could put as many as five all except one of the reds in any cup.
You keep your socks loose in a drawer.
But here the 121 objects a.
Any help would be much appreciated.
2 ways so the required answer is 7.
But now we have 3 greens and 3 greens can be arranged 6 ways permutations of 3 things one at a time.
Back to basics the basic idea of permutation is the different arrangements of distinct objects.
A bag contains 4 red marbles 3 blue marbles and 5 purple marbles.
The only restriction is that the two red marbles can t be in the same cup.
A black cup a white cup and a purple cup.
Suppose we are going to put them into three cups.
No idea how to solve this.
The boys can be arranged in 2.
9 suppose we have six marbles.
40 320 b regard the 2 boys as one unit and so there are 7 units to arrange.
Since color are repeating so we use this formula 𝑛 𝑝1 𝑝2 𝑝3.
10 080 c there are only 2 possibilities.
Drawing the first marble we have a chance probability of dfrac 4 10 dfrac 2 5 for it to be black as there are four black marbles and ten marbles in total.
Thus the actual total arrangements is.
Answer by edwin mccravy 18145 show source.
You have 6 black socks 8 white socks and 4 navy blue socks.
And at first we care only about how many ways can we pick a color for that slot right there that first slot.
1 slot 2 slot 3 slot and 4 slots.
For 12 distinct objects in a row there are 12.
This can be done 7.
Show that three purple marbles and three light blue marbles in two groups of three marbles each can be arranged in four combinations.